package Task26;

import java.util.Scanner;

public class Main2 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double n = 3.14;
        while (scanner.hasNext()){
            double cat = scanner.nextDouble();
            double round = scanner.nextDouble();
            if(cat < 2*n*round){
                System.out.println("Yes");
            }else {
                System.out.println("No");
            }
        }
    }
}
